File name:

PO#00285.pdf.exe

Full analysis: https://app.any.run/tasks/c14fcbdc-edc1-427b-9f15-bd047abb1e8c
Verdict: Malicious activity
Threats:

NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website.

Analysis date: October 14, 2019, 08:43:35
OS: Windows 7 Professional Service Pack 1 (build: 7601, 64 bit)
Tags:
trojan
nanocore
rat
stealer
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5:

C000D06021EFCC9C39605C9063CF170E

SHA1:

44A6CB71A3A993CDC9012A3CB669A73366DA4793

SHA256:

6CA36A1BD118BFCCBB7ADEA5D4F34921CCC0F4D4813FBC8B2152B4CDE1C3420D

SSDEEP:

12288:s0+13sf8irOhRxuXmQCnVQx9b6IRQGCvY1AUmLucvUUaXCcWE9EC7:stQjfbHRQK1upRaXC+9EC7

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • NANOCORE was detected

      • MSBuild.exe (PID: 1276)
    • Changes the autorun value in the registry

      • MSBuild.exe (PID: 1276)
    • Application was dropped or rewritten from another process

      • MSBuild.exe (PID: 1276)
    • Stealing of credential data

      • vbc.exe (PID: 1948)
    • Loads dropped or rewritten executable

      • PO#00285.pdf.exe (PID: 1192)
    • Actions looks like stealing of personal data

      • vbc.exe (PID: 1948)
    • Connects to CnC server

      • MSBuild.exe (PID: 1276)
  • SUSPICIOUS

    • Creates files in the user directory

      • MSBuild.exe (PID: 1276)
      • PO#00285.pdf.exe (PID: 1192)
    • Executable content was dropped or overwritten

      • MSBuild.exe (PID: 1276)
      • PO#00285.pdf.exe (PID: 1192)
    • Executes scripts

      • MSBuild.exe (PID: 1276)
  • INFO

    No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (67.4)
.dll | Win32 Dynamic Link Library (generic) (14.2)
.exe | Win32 Executable (generic) (9.7)
.exe | Generic Win/DOS Executable (4.3)
.exe | DOS Executable Generic (4.3)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2018:12:15 23:24:46+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 26624
InitializedDataSize: 186368
UninitializedDataSize: 2048
EntryPoint: 0x338f
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 15-Dec-2018 22:24:46
Detected languages:
  • English - United States

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x000000D8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 15-Dec-2018 22:24:46
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00006627
0x00006800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.45178
.rdata
0x00008000
0x000014A2
0x00001600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.02518
.data
0x0000A000
0x0002AFF8
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.03532
.ndata
0x00035000
0x00010000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rsrc
0x00045000
0x0005B4F8
0x0005B600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.23409

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.2992
830
UNKNOWN
English - United States
RT_MANIFEST
2
3.26157
67624
UNKNOWN
English - United States
RT_ICON
3
3.5647
16936
UNKNOWN
English - United States
RT_ICON
4
3.76345
9640
UNKNOWN
English - United States
RT_ICON
5
4.01618
4264
UNKNOWN
English - United States
RT_ICON
6
4.1728
1128
UNKNOWN
English - United States
RT_ICON
102
2.74309
184
UNKNOWN
English - United States
RT_DIALOG
103
2.76511
90
UNKNOWN
English - United States
RT_GROUP_ICON
104
2.6935
316
UNKNOWN
English - United States
RT_DIALOG
105
2.66174
256
UNKNOWN
English - United States
RT_DIALOG

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll
ole32.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
630
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start po#00285.pdf.exe #NANOCORE msbuild.exe vbc.exe vbc.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1192"C:\Users\admin\Desktop\PO#00285.pdf.exe" C:\Users\admin\Desktop\PO#00285.pdf.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\desktop\po#00285.pdf.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\system32\kernel32.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\kernelbase.dll
1276"C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
PO#00285.pdf.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
MSBuild.exe
Exit code:
0
Version:
2.0.50727.5483 built by: Win7SP1GDR
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\msbuild.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\system32\kernel32.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\mscoree.dll
1948"c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\admin\AppData\Local\Temp\xv0dyul1.agv"c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
MSBuild.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual Basic Command Line Compiler
Exit code:
0
Version:
8.0.50727.5483
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\system32\kernel32.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\kernelbase.dll
2636"c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\admin\AppData\Local\Temp\zwebl4o1.2af"c:\windows\microsoft.net\framework\v2.0.50727\vbc.exeMSBuild.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual Basic Command Line Compiler
Exit code:
0
Version:
8.0.50727.5483
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\system32\kernel32.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\kernelbase.dll
Total events
93
Read events
92
Write events
1
Delete events
0

Modification events

(PID) Process:(1276) MSBuild.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:UPNP Host
Value:
C:\Users\admin\AppData\Roaming\EEEB5D54-7880-42A7-B542-739BBC26CF4B\UPNP Host\upnphost.exe
Executable files
8
Suspicious files
4
Text files
13
Unknown types
3

Dropped files

PID
Process
Filename
Type
1192PO#00285.pdf.exeC:\Users\admin\AppData\Roaming\USER\doinstall\strFormId\logo\stlmaps.rgstext
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Roaming\USER\doinstall\strFormId\logo\x-google-video-pointer.xmlxml
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Local\Temp\namespace\org.gnome.yelp.gschema.xmltext
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Roaming\u2\mailto\connectt\DbgUrtMui.dllexecutable
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Roaming\period\plan\frequency\clean\bluetoothd.8text
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Roaming\USER\doinstall\strFormId\logo\resgen.exeexecutable
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Local\Temp\namespace\pnm2ppa-ppa-networkingtext
MD5:
SHA256:
1276MSBuild.exeC:\Users\admin\AppData\Roaming\EEEB5D54-7880-42A7-B542-739BBC26CF4B\settings.bak
MD5:
SHA256:
1192PO#00285.pdf.exeC:\Users\admin\AppData\Roaming\credits\ntfswipeo
MD5:
SHA256:
2636vbc.exeC:\Users\admin\AppData\Local\Temp\zwebl4o1.2af
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
5
DNS requests
2
Threats
194

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2708
mscorsvw.exe
GET
200
2.16.186.74:80
http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl
unknown
der
781 b
whitelisted
2492
mscorsvw.exe
GET
200
13.107.4.50:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?812de90c3f7a1905
US
compressed
6.73 Kb
whitelisted
2708
mscorsvw.exe
GET
200
2.16.186.74:80
http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_08-31-2010.crl
unknown
der
555 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1276
MSBuild.exe
194.5.98.251:5540
FR
malicious
2492
mscorsvw.exe
13.107.4.50:80
ctldl.windowsupdate.com
Microsoft Corporation
US
whitelisted
2708
mscorsvw.exe
2.16.186.74:80
crl.microsoft.com
Akamai International B.V.
whitelisted

DNS requests

Domain
IP
Reputation
ctldl.windowsupdate.com
  • 13.107.4.50
whitelisted
crl.microsoft.com
  • 2.16.186.74
  • 2.16.186.120
whitelisted

Threats

PID
Process
Class
Message
1276
MSBuild.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
1276
MSBuild.exe
A Network Trojan was detected
MALWARE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
1276
MSBuild.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
164 ETPRO signatures available at the full report
No debug info